Phytoparasitica (2014) 42, 349-354

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Govind Pratap Rao, Madhupriya, Ajay Kumar Tiwari, Shailendra Kumar and Virendra Kumar Baranwal (2014)
Identification of sugarcane grassy shoot-associated phytoplasma and one of its putative vectors in India
Phytoparasitica 42 (3), 349-354
Abstract: During a survey of sugarcane fields at the Sugarcane Research Institute, Shahjahanpur, Uttar Pradesh, India, in August-September 2012, 6% to 28% incidence of sugarcane grassy shoot disease was observed in different fields of sugarcane variety CoS 7250. The association of phytoplasma with symptomatic sugarcane was confirmed by direct and nested PCR amplification of phytoplasma ribosomal gene. Four different delphacid leafhopper species, viz. Cofana unimaculata Signoret, Exitianus indicus (Distant), Sogatella kolophon Kirkaldy and Hishimonus phycitis (Dist.) were the prevalent feeding species of the Auchenorrhyncha fauna in the symptomatic sugarcane fields. Out of these four leafhopper species, only E. indicus tested positive for phytoplasma presence. Phylogenetic analysis suggested that the phytoplasmas from sugarcane and E. indicus in the present study were members of 16Sr XI. The confirmation of association of sugarcane grassy shoot phytoplasma in E. indicus population is important to understand the secondary spread of this phytoplasma in sugarcane plants.
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Link to article at publishers website
Database assignments for author(s): Govind P. Rao, Virendra Kumar Baranwal, Ajay Kumar Tiwari

Research topic(s) for pests/diseases/weeds:
transmission/dispersal of plant diseases

Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.

Cofana unimaculata Sugarcane (Saccharum officinarum) India
Sogatella kolophon Sugarcane (Saccharum officinarum) India
Hishimonus phycitis Sugarcane (Saccharum officinarum) India
16SrXI phytoplasma group Sugarcane (Saccharum officinarum) India
Phytoplasma sacchari Sugarcane (Saccharum officinarum) India